nfa_ce_main.c revision 5c65c3a0f42e174e47fecd4e569606003217ff4e
1/******************************************************************************
2 *
3 *  Copyright (C) 2011-2013 Broadcom Corporation
4 *
5 *  Licensed under the Apache License, Version 2.0 (the "License");
6 *  you may not use this file except in compliance with the License.
7 *  You may obtain a copy of the License at:
8 *
9 *  http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 *
17 ******************************************************************************/
18
19
20/******************************************************************************
21 *
22 *  This is the main implementation file for the NFA_CE
23 *
24 ******************************************************************************/
25#include <string.h>
26#include "nfa_ce_api.h"
27#include "nfa_sys.h"
28#include "nfa_ce_int.h"
29#include "nfa_dm_int.h"
30#include "nfa_sys_int.h"
31
32/* NFA_CE control block */
33tNFA_CE_CB nfa_ce_cb;
34
35/*****************************************************************************
36** Constants and types
37*****************************************************************************/
38#define NFA_CE_DEFAULT_ISODEP_DISC_MASK (NFA_DM_DISC_MASK_LA_ISO_DEP | NFA_DM_DISC_MASK_LB_ISO_DEP)
39
40static const tNFA_SYS_REG nfa_ce_sys_reg =
41{
42    NULL,
43    nfa_ce_hdl_event,
44    nfa_ce_sys_disable,
45    NULL
46};
47
48/* NFA_CE actions */
49const tNFA_CE_ACTION nfa_ce_action_tbl[] =
50{
51    nfa_ce_api_cfg_local_tag,   /* NFA_CE_API_CFG_LOCAL_TAG_EVT */
52    nfa_ce_api_reg_listen,      /* NFA_CE_API_REG_LISTEN_EVT    */
53    nfa_ce_api_dereg_listen,    /* NFA_CE_API_DEREG_LISTEN_EVT  */
54    nfa_ce_api_cfg_isodep_tech, /* NFA_CE_API_CFG_ISODEP_TECH_EVT*/
55    nfa_ce_activate_ntf,        /* NFA_CE_ACTIVATE_NTF_EVT      */
56    nfa_ce_deactivate_ntf,      /* NFA_CE_DEACTIVATE_NTF_EVT    */
57};
58#define NFA_CE_ACTION_TBL_SIZE  (sizeof (nfa_ce_action_tbl) / sizeof (tNFA_CE_ACTION))
59
60/*****************************************************************************
61** Local function prototypes
62*****************************************************************************/
63#if (BT_TRACE_VERBOSE == TRUE)
64static char *nfa_ce_evt_2_str (UINT16 event);
65#endif
66
67
68/*******************************************************************************
69**
70** Function         nfa_ce_init
71**
72** Description      Initialize NFA CE
73**
74** Returns          None
75**
76*******************************************************************************/
77void nfa_ce_init (void)
78{
79    NFA_TRACE_DEBUG0 ("nfa_ce_init ()");
80
81    /* initialize control block */
82    memset (&nfa_ce_cb, 0, sizeof (tNFA_CE_CB));
83
84    /* Generate a random NFCID for Type-3 NDEF emulation (Type-3 tag NFCID2 must start with 02:FE) */
85    nfa_ce_t3t_generate_rand_nfcid (nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].t3t_nfcid2);
86    nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].rf_disc_handle = NFA_HANDLE_INVALID;
87    nfa_ce_cb.isodep_disc_mask  = NFA_CE_DEFAULT_ISODEP_DISC_MASK;
88
89    /* register message handler on NFA SYS */
90    nfa_sys_register ( NFA_ID_CE,  &nfa_ce_sys_reg);
91}
92
93/*******************************************************************************
94**
95** Function         nfa_ce_sys_disable
96**
97** Description      Clean up ce sub-system
98**
99**
100** Returns          void
101**
102*******************************************************************************/
103void nfa_ce_sys_disable (void)
104{
105    tNFA_CE_LISTEN_INFO *p_info;
106    UINT8 xx;
107
108    NFC_SetStaticRfCback (NULL);
109
110    /* Free scratch buf if any */
111    nfa_ce_free_scratch_buf ();
112
113    /* Delete discovery handles */
114    for (xx = 0, p_info = nfa_ce_cb.listen_info; xx < NFA_CE_LISTEN_INFO_MAX; xx++, p_info++)
115    {
116        if ((p_info->flags & NFA_CE_LISTEN_INFO_IN_USE) && (p_info->rf_disc_handle != NFA_HANDLE_INVALID))
117        {
118            nfa_dm_delete_rf_discover (p_info->rf_disc_handle);
119            p_info->rf_disc_handle = NFA_HANDLE_INVALID;
120        }
121    }
122
123    nfa_sys_deregister (NFA_ID_CE);
124}
125
126/*******************************************************************************
127**
128** Function         nfa_ce_hdl_event
129**
130** Description      nfa rw main event handling function.
131**
132** Returns          BOOLEAN
133**
134*******************************************************************************/
135BOOLEAN nfa_ce_hdl_event (BT_HDR *p_msg)
136{
137    UINT16 act_idx;
138    BOOLEAN freebuf = TRUE;
139
140#if (BT_TRACE_VERBOSE == TRUE)
141    NFA_TRACE_EVENT3 ("nfa_ce_handle_event event: %s (0x%02x), flags: %08x", nfa_ce_evt_2_str (p_msg->event), p_msg->event, nfa_ce_cb.flags);
142#else
143    NFA_TRACE_EVENT2 ("nfa_ce_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_ce_cb.flags);
144#endif
145
146    /* Get NFA_RW sub-event */
147    if ((act_idx = (p_msg->event & 0x00FF)) < NFA_CE_ACTION_TBL_SIZE)
148    {
149        freebuf = (*nfa_ce_action_tbl[act_idx]) ((tNFA_CE_MSG*) p_msg);
150    }
151
152    /* if vendor specific event handler is registered */
153    if (nfa_ce_cb.p_vs_evt_hdlr)
154    {
155        (*nfa_ce_cb.p_vs_evt_hdlr) (p_msg);
156    }
157
158    return freebuf;
159}
160
161#if (BT_TRACE_VERBOSE == TRUE)
162/*******************************************************************************
163**
164** Function         nfa_ce_evt_2_str
165**
166** Description      convert nfc evt to string
167**
168*******************************************************************************/
169static char *nfa_ce_evt_2_str (UINT16 event)
170{
171    switch (event)
172    {
173    case NFA_CE_API_CFG_LOCAL_TAG_EVT:
174        return "NFA_CE_API_CFG_LOCAL_TAG_EVT";
175
176    case NFA_CE_API_REG_LISTEN_EVT:
177        return "NFA_CE_API_REG_LISTEN_EVT";
178
179    case NFA_CE_API_DEREG_LISTEN_EVT:
180        return "NFA_CE_API_DEREG_LISTEN_EVT";
181
182    case NFA_CE_API_CFG_ISODEP_TECH_EVT:
183        return "NFA_CE_API_CFG_ISODEP_TECH_EVT";
184
185    case NFA_CE_ACTIVATE_NTF_EVT:
186        return "NFA_CE_ACTIVATE_NTF_EVT";
187
188    case NFA_CE_DEACTIVATE_NTF_EVT:
189        return "NFA_CE_DEACTIVATE_NTF_EVT";
190
191    default:
192        return "Unknown";
193    }
194}
195#endif /* BT_TRACE_VERBOSE */
196